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Does the 1991 Merlin Road have a miniature BB? Concerns?(3 posts)

Does the 1991 Merlin Road have a miniature BB? Concerns?BIG RING
Sep 11, 2003 2:36 PM
A guy I ride with has an early model Melin Road with a really small BB. I am considering buying one off RBR. My concern is where to buy replacement bearings for the BB. Other than that, I can't think of any other concerns I should have. Thanks for your help.
Infamous Grease Guard BB....Bixe
Sep 11, 2003 7:03 PM
Those Merlins were equipped with a WTB Grease Guard BB that consisted of a pair of sealed cartridge bearings that were pressed on to the spindle and that assembly was retained in the shell with a couple of inside snap rings. The bearings were lubricated with WTB's Gooser grease gun through a couple of small ports at the bottom of the shell.

Phil Wood still has the bearings available (mine were the p/n 6903). Get the 108 mm spindle to match the bearings....
While the Phil Wood stuff is excellent, the Merlin BB is a real pain.

Merlin also had available quite an involved tool for removing and replacing those bearings. I have no idea where that might be found. When I spoke with the folks at Merlin then, they were helpful enough but were clearly trying to forget that time in their history.. I wouldn't recommend it....
re: Does the 1991 Merlin Road have a miniature BB? Concerns?russw19
Sep 11, 2003 7:08 PM
Some older Merlins had a pressed in Phil Wood Bottom Bracket. It takes a special tool to instal and remove them, but the bearings are a cartridge bearing that is good for usually about 10,000 miles unless you repetitively submerge them under water. I would check around your area and find a Merlin dealer who has dealt with them for a few years and see if they have the tool.